A light year is defined as the distance light travels in one year. One light year is 9.46 × 10^12 kilometers. A galaxy is about 150,000 light years wide. About how
many kilometers wide is the galaxy?
A 1.419 × 10^16
B 1.419 × 10^17
C 1.419 × 10^18
D 1.419 × 10^19

Needmax recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

In need of in the diagram, ∠abc is a right angle. ∠dbc = 30°27'40". find the measure of ∠abd.

What’s the answer ? use the picture to see the problem